In a dramatic turn of events, South Korean President Yoon Suk Yeol's declaration of martial law was swiftly overturned by the National Assembly on Tuesday. Yoon, in a surprise late-night address broadcast on YTN, accused opposition parties of "anti-state" activities, claiming they had jeopardized the nation's stability and parliamentary processes, necessitating drastic action to safeguard South Korean freedoms and the constitutional order.

Yoon explicitly stated his intent to counter perceived threats from North Korea and internal forces he deemed "pro-North Korean anti-state" elements, aiming to protect the "free constitutional order." However, the South Korean parliament responded decisively, voting 190-0 to rescind the declaration. National Assembly Speaker Woo Won Shik affirmed the legislature's commitment to "protect democracy and the people" and urged the withdrawal of military and police personnel from the Assembly grounds.

The White House, while acknowledging close monitoring of the situation and contact with the South Korean government, expressed serious concern over the unfolding events. A National Security Council spokesperson confirmed the U.S. was not given prior notice of Yoon's announcement. Deputy Secretary of State Kurt Campbell echoed this sentiment, describing the U.S. observation of the situation with "grave concern" and highlighting ongoing engagement with South Korean counterparts. Campbell underscored the enduring strength of the U.S.-South Korea alliance and expressed hope for a peaceful resolution in line with the rule of law.

While Yoon's address did not detail specific measures, reports emerged indicating the parliament building's entrance was blocked. Yonha news agency, citing military sources, reported potential restrictions on parliamentary and political party activities, and potential control over media and publishers by the martial law command. Opposition leader Lee Jae-myung, in a livestream, warned of potential economic collapse and military control, urging citizens to gather at the National Assembly.

The liberal Democratic Party's control of the National Assembly since Yoon's 2022 inauguration has seen frequent clashes with the president, whose agenda has been repeatedly challenged, contributing to low approval ratings. Yoon cited the Democratic Party's actions, including impeachment efforts against top prosecutors and budget rejections, as justification for his declaration. He criticized proposed budget cuts, arguing they would severely hamper government operations, and accused the parliament of becoming a haven for criminals, intent on disrupting the democratic system.

Former President Jae-in voiced concerns about the state of democracy, urging swift action from the National Assembly and public participation to safeguard democratic processes. Yoon's political standing has been further weakened by a significant electoral defeat earlier this year, which strengthened the Democratic Party's majority, and scandals involving First Lady Kim Keon Hee, including alleged stock manipulation and acceptance of a luxury gift. Opposition parties have demanded a special prosecutor to investigate the allegations against the first lady. This incident marks the first invocation of martial law in South Korea since 1980.